Hi, I got one from Apple and another brand.
The Apple one seems to be better.
While it does allow a TB2 Mac to use Razer Core, there is some weirdness.
Specifically, it shows up as "Unsupported" but it works.
The USB ports worked on it. (Will double check if as USB 2 or 3)
Changing the string to fix it per kid2010 lets it show up as supported but seemed to have no effect on function.
Will update but would be happy to have other mention their experience.
It may be adding some more "wonkiness" to eGPU experience vs using a GOOD TB2 chassis (Sonnett or Netstor with internal power and sufficient went slot length)
The Akitio Node is going to shake things up. The Razer Core is already a better alternative than the BozoBox3 (cheaper, and not made in BillyBob's garage). But it will be the function of these adapters that will either allow or inhibit folks from using newer better TB3 boxes that are here and more coming.
Thank you. Can you please test this adapter on Windows (BootCamp) ? This adapter doesn't work on pre 10.12 macOS and I am afraid it won't work on Windows as well. Also Apple says that this bidirectional adapter "Requires macOS Sierra". No mention about Windows.